My 8320 has been trouble free for the past 5 months when all of a sudden........ .......NO CHARGE when using any of my house or car chargers (not that it would matter but I tried different batts too!) Nothing happens when I plug in any of the chargers. I can charge off of USB though and the USB link works fine, just no charging. I ordered one of the desk top chargers that use the contacts on the back of the BB to see if that works but I has not arrived yet. I am puzzled by this one which is similar to yours but at least I have the USB that works.